Claude Sonnet 4.5 Pricing
BalancedAnthropic · 1M tokens context
Claude Sonnet 4.5 from Anthropic costs $3.00 per 1 million input tokens and $15.00 per 1 million output tokens as of June 2026 (live OpenRouter data). The model supports a 1,000,000-token context window (approximately 750,000 words) with a 64K-token maximum output. A typical 1,000-token request costs $0.0030 in input charges; a 10,000-token request costs $0.0300.
| Input price | $3.00 / 1M tokens |
|---|---|
| Output price | $15.00 / 1M tokens |
| Output / input ratio | 5.0× |
| Context window | 1,000,000 tokens (~750,000 words) |
| Maximum output | 64,000 tokens |
| Cost per 1K tokens (input) | $0.0030 |
| Tier | Balanced |
| Last verified |
Claude Sonnet 4. 5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows.
Input Price
$3.00
per 1 million tokens
Output Price
$15.00
per 1 million tokens
Context Window
1M tokens
max 64K output
Cost Examples
| Request Type | Tokens | Input Cost | Output Cost |
|---|---|---|---|
| 1,000 word article | 1,333 | $0.004 | $0.006 |
| 10-page document (2,500 words) | 3,333 | $0.01 | $0.015 |
| 1,000 lines of code | 5,000 | $0.015 | $0.0225 |
| 100K token document | 100,000 | $0.30 | $0.45 |
Output cost estimated at 30% of input token count. Use the calculator for exact figures.
Strengths
- ✓Massive 1M-token context window
- ✓Multimodal: understands images as well as text
- ✓Strong general-purpose performance
Limitations
- –Quality and availability can vary by hosting provider
- –Quality and availability can vary by hosting provider
Best Use Cases
Calculate Claude Sonnet 4.5 Costs
Use the TokenRate calculator to convert any budget, token count, or text into exact Claude Sonnet 4.5 costs — and compare across all models.
Open Calculator →Claude Sonnet 4.5 — FAQ
Related Models
Related Guides